| SUN-PHOTOMETER CALIBRATION AND ITS APPLICATION |
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| 作者姓名： | Zhou Jun Cao Changyin Xu Jun Hu Huanling |
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| 作者单位： | Anhui Institute of Optics and Fine Mechanics Chinese Academy of Sciences，Hefei，Anhui 230031，Anhui Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Hefei，Anhui 230031，Anhui Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Hefei，Anhui 230031，Anhui Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Hefei，Anhui 230031 |
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| 摘 要： | Sun-photometer has been widely used to investigate various optical properties of the atmosphere.In order to derivean accurate atmospheric optical depth,great care in the sun-photometer calibration is required.In this paper,the fea-ture of a new sun-photometer is described.Calibration results based on the Langley method at Mt.Huangshan are re-ported.Effect of the atmospheric instability on retrieving the calibration values is discussed and errors in calibration atMt.Huangshan due to temporal variation of aerosol concentration are estimated.It is shown that the calibratedsun-photometer can be used to derive the atmospheric optical depth to an accuracy of 5%.As one of its applications,examples of determination of turbidity parameters and columnar aerosol size distribution are presented.
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| 收稿时间： | 5/3/1993 12:00:00 AM |
| 修稿时间： | 1993/9/23 0:00:00 |
SUN-PHOTOMETER CALIBRATION AND ITS APPLICATION |
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| Zhou Jun,Cao Changyin,Xu Jun,Hu Huanling.SUN-PHOTOMETER CALIBRATION AND ITS APPLICATION[J].Acta Meteorologica Sinica,1994,8(2):229-237. |
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| Authors: | Zhou Jun Cao Changyin Xu Jun and Hu Huanling |
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| Institution: | ZhouJunCaoChangyinXuJunHuHuanlingAnhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei,Anhui 230031 |
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| Abstract: | Sun-photometer has been widely used to investigate various optical properties of the atmosphere.In order to derive an accurate atmospheric optical depth,great care in the sun-photometer calibration is required.In this paper,the fea- ture of a new sun-photometer is described.Calibration results based on the Langley method at Mt.Huangshan are re- ported.Effect of the atmospheric instability on retrieving the calibration values is discussed and errors in calibration at Mt.Huangshan due to temporal variation of aerosol concentration are estimated.It is shown that the calibrated sun-photometer can be used to derive the atmospheric optical depth to an accuracy of 5%.As one of its applications, examples of determination of turbidity parameters and columnar aerosol size distribution are presented. |
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| Keywords: | aerosol solar radiometry calibration turbidity |
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